Forest route, as a key aspect in forest conservation, management and utilization, plays an important
role in economical utilization of forest. In this study, the role of forest route in wood carrying and economical
management, of Waston series, was investigated in Mazandran wood and paper industry. To measure the effect
of the route on the wood carrying expenses, as the first step to be taken, the skidder tire (HSM, Made in
Germany) expenses were measured by FAO system with some modification with respect to Iran conditions. To
calculate the amount of output, a continuous chronological study was done on 30 samples of wood carrying
operations in 17 and 27 sections and it was calculated 8.9 mc/h°. Some variable in wood carrying time, such as
wood carrying distance, wood carrying route steep, the number and volume of 4-variable logs model: y = 1.41
+ 0.255Xj-0.5x + 0.965x + 0.26x Known as predicator for the one of skidding 10 samples of wood carrying, 2 3 4
considering length effect model, wood carrying per hour and wood carrying expenses, the result showed that
the longer the wood carrying route e.g. from 250 m. to 1000 m., the more time to be spent from 619' to 1803' and
the more expenses of wood carrying must be allotted from 18661Rials to 54356 Rials, for every M/C.